You only have one panel window. That window shows on all desktops. There is not a separate panel window on each desktop. Therefore you cannot have compiz showing two desktops and see a different window list on each desktop. It is simply not possible because the panel you are seeing on each desktop is the _same_ window.
You only have one panel window. That window shows on all desktops. There is not a separate panel window on each desktop. Therefore you cannot have compiz showing two desktops and see a different window list on each desktop. It is simply not possible because the panel you are seeing on each desktop is the _same_ window.